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glAlphaFunc

Started by saeZ Jun 4, 2002 at 4:08 PM 2 replies 550+ views

Original Post

Jun 4, 2002 at 4:08 PM

I''m working on a isometric game. I know how to achieve transparency by faking colorkey with alphatest (glAlphaFunc(GL_GREATER, 0), but what I want now is to render every alpha value. This is used in Lasersquad Nemesis and it looks great! It makes easy to implement shadows and explosion animations for example. I want to draw every alpha value, 0 being fully transparent, 255 being fully opaque, and everything else between those values accordingly. So, how would I do this? Thank you. saeZ

Fruny

Jun 4, 2002 at 4:34 PM

saeZ

Jun 4, 2002 at 4:57 PM

Pardon my stupidity, but what values should I use with glBlendFunc()?

I tried GL_SRC_ALPHA and others by random and they didn''t give me the result I wanted. I have no idea which values to use.

saeZ

Fruny

Jun 4, 2002 at 6:00 PM

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